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Articles by P.K. Sarker
Total Records ( 4 ) for P.K. Sarker
  P.K. Sarker , S.U. Ahmed , S. Rahman and D. Dey
  Present study deals with the suitability and production potential of two exotic fish species (GIFT: Genetically Improved Farm Tilapia; O. niloticus, C. carpio) as mono culture and mixed culture system of integrating a short term (mid August-mid December) brackish water aquaculture in the south-west coastal paddy fields of monocropped coastal saline soil at high rain fed region during monsoon season. Twelve paddy plots size ranged from 1320-2080 m2 with peipheral trenches (40 cm depth and 45 cm width) and one meter deep ditch in 3% of the area were stocked with fish at a density of 5928 ha-1 for mono and mixed culture (50+50%), after 105 days of rearing average weight and production rate of fish from monoculture of GIFT (T1), mixed culture of GIFT and C.carpio (T2) and monoculture of C. carpio were found 112.5 g, 479.36 kg; (114.2+110.6 g); (241.68+185.21 kg); 114.03 g, 398.95 kg ha-1, respectively. Higher significant production was found in case of GIFT monoculture in T1 than that of other treatments. Highest net return was obtained from T1 while lowest net return from rice monoculture crop farming in T4. So, rice fish farming was economically more rewarding than the rice mono-crop farming. Besides, GIFT monoculture plays a significant production potential for coastal paddy fields.
  Ahmed S.U. , P.K. Sarker , M.N. Islam , M. Kamal and M.A. Mazid
  The study was undertaken in eighteen selected shrimp farms, fifteen depot and fifteen markets of different locations, viz. Paikgacha, Rampal and Shaymnagar of greater Khulna district to observe the variation in quality and quantity of shrimp production of the farms operated by trained manpower with the application of improved management aspects at different degrees to that of the traditional farms and to identify the causes of post-harvest quality losses of shrimp produced from the farms at depot and market levels. Data reveals that a significant higher production 398.50 kg ha–1 can be achieved from the improved managed farms against the low yielded traditional shrimp farms (170.80 kg ha–1) with a positive impact of management on the quality of shrimp. For post harvest quality loss of produced shrimps at depot and markets, the major causes identified were poor quality non-chlorinated water, non-maintenance of personnel hygiene, poor drainage and sanitation system, unscientific holding system, poor quality of ice and ice shrimp ration, long time transportation in unscientific packet material, defective infrastructure of the market place etc. The estimated loss due to improper handling, icing and transportation calculated as about 8-25% in the coastal shrimp producing area of greater Khulna district.
  S. Rahman , P.K. Sarker , S.U. Ahmed , M. Rafiquzzaman and S.M. Ferdous
  A study was carried out during the Aman season (September-Dcember) in the south-west coastal paddy fields of Bangladesh to understand the culture suitability and production potential of two exotic fish species, namely Puntius gonionotus and Cyprinus carpio in rice fish integrated culture system. Twelve paddy plots with size ranges from 1300-27000m2 were stocked with fish at a density of 4930 /ha for mono & mixed culture (50+50%). After 50 days of rearing production rate of fish from monoculture of Puntius gonionotus (T1), mixed culture of Puntius gonionotus1 and Cyprinus carpio (T2) and monculture culture of Cyprinus carpio (T3) was found 280.12, 330.40 (119.64+210.76 kg) and 279.78 kg ha-1, respectively. No significant variation in fish production was observed between T1 and T3. But compare to other treatments significant higher production of fish was obtained from T2. However, for rice production a significant lower production (3.14 ton h-1) was obtained for T3 compare to other two treatments, while higher rate of rice production (3.85ton/h) was recorded for T1. For control plot (T4) the production rate of rice was 3.40 ton h-1. In the study, no negative correlation was found for the integration of fish with rice culture.
  Biswas S.K. , P.K. Sarker , A.K.M. Mazharul Islam , M.A. Bhuiyan and B.C. Kundu
  Field experiments were conducted at the Regional Agricultural Research Station, Jessore, Bangladesh; during the rabi seasons (winter) of 1999-2000 and 2000-2001 to compare the yield and yield contributing characters of onion (cv. Faridpuri) under different irrigation schedules. The irrigation sequences were: no irrigation (I1); irrigation at five days interval (I2); irrigation at 15 days interval (I3); irrigation at 20 days interval (I4) and irrigation at 30 days interval (I5) up to 30 days before harvesting. Among all the treatments, I2 produced the highest yields over the years (9.01 and 8.99 t ha-1, respectively). The second highest yields of 8.74 and 8.68 t ha-1 were obtained during the two years from the treatment I3which received four irrigations at 15 days interval. However, the yields did not show any significant difference with those of I2. The lowest yields of 3.24 and 3.29 t ha-1 were obtained from non-irrigated control plots in the first and second year, respectively. The pooled data of two years revealed that bulb yield was highest (9.0 t ha-1) with irrigation at 10 days interval but was at par with irrigation at 15 days interval. The average bulb yield increase of the irrigated treatments over the control ranged from 97.28% to as high as 175.66%. The estimated total water use of the two highest yielding treatments were 279.5 and 239 mm, respectively. The economic analysis indicates that gross return and net return were highest in I2 followed by I3. The marginal rate of return was highest in I4.The highest marginal gross margin and the second highest marginal rate of return were obtained from I3. Both of the treatments I2 and I3 gave the highest benefit-cost ratio.
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